Diagnostic Procedure: Notes

WARNING: This page is about a different variant/trim than selected.

CHECK TCM POWER SOURCE
1. Turn ignition switch to "ON" position.
  (Do not start engine.)
2. Check voltage between TCM terminals 10, 19, 28 and ground.
  1. Voltage: Battery voltage
3. Turn ignition switch to "OFF" position.
4. Check voltage between TCM terminal 28 and ground.
  1. Voltage: Battery voltage
OK or NG
1. OK: GO TO 2.
2. NG: Check the following items:
  - Harness for short or open between ignition switch and TCM (Main harness)
  - Harness for short or open between battery and TCM (Main harness)
  - Ignition switch and fuse
    Refer to POWER DISTRIBUTION .
Fig 1: Checking Voltage Between TCM Terminals 10, 19, 28 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

2. CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY
1. Turn ignition switch to "OFF" position.
2. Disconnect terminal cord assembly connector F50 in engine compartment.
3. Check resistance between terminal cord assembly F50 terminals 6 and 7 when A/T is cold.
  
  Fig 2: Checking A/T Fluid Temperature Sensor With Terminal Cord Assembly
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Reinstall any part removed.
OK or NG
1. OK (With CONSULT-II): GO TO 3.
2. OK (Without CONSULT-II): GO TO 3.
3. NG:
  1. Remove oil pan.
  2. Check the following items:
    - A/T fluid temperature sensor
      Refer to "COMPONENT INSPECTION ".
    - Harness of terminal cord assembly for short or open
3. CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITH CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select "TCM INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Read out the value of "FLUID TEMP SE".
  
  Fig 3: Checking Input Signal Of A/T Fluid Temperature Sensor (With Consult-II)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  1. Voltage
  2. Cold [20°C (68°F)] -->: Approximately 1.5V -->
  3. Hot [80°C (176°F)] 0.5V
OK or NG
1. OK: GO TO 4.
2. NG: Check the following items:
  - Harness for short or open between TCM, ECM and terminal cord assembly (Main harness)
  - Ground circuit for ECM
    Refer to ENGINE PERFORMANCE .
4. CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITHOUT CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 47 and ground while warming up A/T.
  1. Voltage
  2. Cold [20°C (68°F)] -->: Approximately 1.5V -->
  3. Hot [80°C (176°F)] 0.5V
3. Turn ignition switch to "OFF" position.
4. Disconnect TCM harness connector.
  
  Fig 4: Checking Voltage Between TCM Terminal 47 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
5. Check resistance between terminal 42 (B/W) and ground.
  1. Continuity should exist.
OK or NG
1. OK: GO TO 5.
2. NG: Check the following items:
  - Harness for short or open between TCM, ECM and terminal cord assembly (Main harness)
  - Ground circuit for ECM
    Refer to ENGINE PERFORMANCE .
Fig 5: Checking Resistance Between Terminal 42 (B/W) And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
5. CHECK DTC
Perform "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE ".

OK or NG
1. OK: INSPECTION END
2. NG:
  1. Perform TCM input/output signal inspection. See INPUT/OUTPUT SIGNAL OF TCM .
  2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.